Surfacing-machine.



J. E'. RIGHTMIRE.

SURPAGING MACHINE.

APPLICATION YILBD JUNE 19, 1911.

1,040,419. Patented ot.8,1912.

Gabo 12 mkg v am' wzlnesses.

Q Jgtty BEK-ST AVAILABLE COPY JOHN E. RIGI-ITMIRE, OF LOS ANGELES,CALIFORNIA.

Specification of Letters Patent.

Application led June 19, 1911.

SURFACING-MACHINE.

Patented Oct. 8,1912.-

Serial No. 633,942.

. a citizen ot the United States, residing at Los Angeles, in the countyof Los Angeles and State of California, have invented new and useful'Improvements in Surfacing- Maehines, of which the following is aspeciication. I

This invention relates to improvements in surfacing machines andparticularly to machines that. are adapted to cut and produce an evensurtace upon the Atop or supportingpart of a block, tabl e' or otherdevice.

It is particularly the object ol the invention to provide a surfacecutting and evening device which is readily applicable to the tops orworking,r surfaces of meat blocks .such as commonly employed bybutchers.

It an object of the invention also to provide a device which may bemounted upon any meat block or similar surface and so secured thereto,that it may accmately and evenly cnt and smooth the upper surtaccnthereof.

It is a further object of the invention to provide a device of thisCharacter which is operable with mechanism capable ot' producing its ownrotation as well as the rotatio-n of a cutting implement whereby thesurface of a meat;Y block, tableor the like may bc smoothed.

In the accompanying drawing forming a part ot this specification, Figure1 is a sidc elevation of the improved surfacing machine applied to amcat block, the block cngaginfg support being shown partially inSectimi. Fig. is a transverse Sectional vcw talqcn upon thc lino 2--2 oiyFig. l. l"i il is an end elevation of the surfacing machim` lookin;r atthe same from the outcr ond thereol. Fin'. Il is a detail sectional View'taken upon thcy line yl---L of Fig. '1. Fig. 5 is adetail sectionalView taken upon the lino 5-5 ot' Fig. l. Fig. (l is a fragmentary dctailsectional view taken upon the line t At3 of Fig. 3.

The details of the invention will now he more particularly dcsrriliicd,refercm c heine had to thc drawing in whioh 10 indicates a frame havingislcevc portions 1l and t2 t'ormed thereon and adapted to be ljournaledupon a central pivot piu ll.

The lower end of the pin I3 is [n'ot'crahl'v roduced and vscrew threadedat lftand adaptcd to be screwed into a socket' 13 tot into thc socket 15is also counter-bored to larger diameters at lT and i9 forfacilitating,Y the ad-l justment nl' thc. pivot, pin in its verticalposition. The said pivot pin is provided with an annular adjustingflange l!) near its lower endat'laptcd to rcst upon the upper surface ofthe meat` block. collar or ring: 20 is usually anchored in t-hccounter-stmk here 18 and set screws llt carried by the flange lt) arladapted to bear against the said ring or collar O and by theiradjustment the pivot pin .l2-3 may be brought loan upright or vertical.position. rlhe uppcr and lmvcr sleeves ll and l2 are usually braced withrespect to each other by means nt a bracket 2Q which extends bevond thcslccvcs in diamctrically opposite directions trom the trame lt) and thesaid brackct QSE usually has'sccurcd to it a motor 23 for actuating theoperatingl mechanism ot the surfacing machine. rl`he space between theupper and lower sleeves l-1 and l). usuall)v tilted bv the huh portionot a beveled rear 2l which is tast to the Said pivot pin and is adapted.as will he hereinafter described. to atl'ord a means by which the meatysurfacingr mechanism may be caused to rctatc over the surl'acc of themeat block. 'l`hc trame lt) cxtcnds laterally lrom the sleeves ll and ILto anv dcsircd extent and ol' courstl is mudo :ultlicicntl'v longi to4carry tho surt'acc cuttingl or trimming?r mechanism to tbc tarthcstpoints or corners upon the surtacc ot thc moat block.

y'lhc outcr cnd ol the tramo l() is provided with an cud l'ramc 25.which extends above tht` said l'ramc l() a suitable distance to providi`a ljournal hearing at. ft' l'or an upper animating,r sllal't 1T mountedupon thc machine. 'l`hc sha'tl 2T extends to the motor 223 and arrangedin alincmcnt therewith and so secured thereto that the operation ol'theI motor will produc(` a rotation ot thc said shaft. 'llu` motor ill',is |n'ct`crablv ol the electrical tvpc which readily adapts itself to uo upon machiiws ol this' character. rl`he outcr cnd ot' thc shaft 2Tprojects bevond the end l'ramc 23 and is provided with u friction disl;mechanism lo prctcralilv tormcd with two opposing beveled dish-1 20 thcinncr cnc ot1 which i.-; prof-'scrl toward the outer ivcd disk tu' moansot' a spring` itt? which is intorpia-cd lrctwccn raid inncr dish 39 anda collar ill .-ocm'cd upon thc #hatt 'lho disks :irc adapted to rcccivc:i friction gear 113 lictw-cn lhcin so that in bcarinf; upon the uppersurtaee` ot' a meat, block ttl. 'l'bc said l pcriphcri' thon-ot' motionwill hc communillt) te e'oni the shaft- 2T through the 'friction islamechanism 28, to thc said friction gear 32.

The friction gear 3Q is mount-ed upon a shaft 33 'fastened to an armwhich projects from a sleeve The said sleeve 35 is journaled upon ashaft :$6 which is carried by a bracket 37 secured to the end t 'aine25. The movement of the friction disks Qi) con. trolled and adjustablehya mechanism carried by the said sleeve 35. .ln arm projects upwardlyfrom the said sleeve 35 and its upper end engages the shaft 33. lro-Yjecting 4from said arm 38 is a segmental slotted projection 39 which isadapted to engage a stud or portion 4:0 which projects outwardly fromthe taine 25. The outer end of the stud or post 40' is provided with 'anannular shoulder ll and its outer end beoncl said shoulder is screw'threaded and fitted 'with a clamping nut ft2 haring a haadie 43 bywhich it may be operatedu By loosening the clamping; nut 42 the arm 3Smy be rocked upon the shaft 35, so as to more the friction gear 3f:closer to or farther away vtroni the axis ot' the shaft 27 and thus varythe speed received by the said friction g'eer from the friction disks 2frlhe action of the spring 30 will always 'tend to keep the frictiondisks 29 against the periphery of the gear 32, no matter how iter it muybe ecliusted from the ortis of said disks or how close it may be broughtthereto. The clampingnut 42 will hold the arm 38 in its aclg'ust.

eclfpositions. The Segnieutal projection 39 s preferably provided' witha handle lill hy vwhich the said segmental proiection und the' arm '.8may be moved in adjusting it.

The friction gear 32 carries u pinion lo which meshes with a gear el@ournaled upon the shaft 36. The said pinion 45 inode somewhat wider thanthe gear ld so to allow for its adjustment. in conjunction with the'friction gear 32 without danger ot mving it out of mesh with the 'teethof the gear 6. The shaft 3G also arries a gear Wheel t7 which is soconnected with the gear 46 as l to loe turned thereby and the teeth othe the teeth of an internal gear The toothed. i- S over-hangs as shownin Figs. l and. 4l, but the saiel internal r sl55 is of larger diameterthan the gear il so that the .movement communicated thereto by said geurft'will he at a slower rate of speed than that at which the said gear i7mores. The

gear 4'? engage 4S arranged adjacent thereto. flange of the sautinternal gear l internal gear 453 is secured to a screw shaft 49, whichis journalerl upon the traine l() and extends parallel with the shalt.ZT to Ward the pivot pin-13. The inner cud ot said screw shaft. 49carries a beveled pinion 50 which meshes with the beveled gear .2l whichsecured to said pivot piu l. lit will be readily understood that themore Accueil ment con'imuuicated to the pinion 50 through the train ofgearing described `will cause the said pinion 50 to pull the traine l()with all the mechanism that it carries around the 'pivot pin 13. f

Moraloly mounted upon the .trauielO is e 53 upon the upper and loweredgesof the traine 10, the said bearings being beveled so es to ttorin adove-ta1led engagement' loe which projects laterally therefromk and 1Sprf vided with a screw threaded vaperture fitting upon the threads ofthescrew' shaft lll. so that when the said screw shaft isrotated the block5l and the frame 51 thereby, af-ill he mored along' the hearings uponthe frame lO in accordance with the Within the cutter traine 51 aycutter shaft. 55 is mounted `with its axis in and the lower end of saidshaft 55 has sevided with a saw 5'? ot' circular simpel and a series ofplaning knives 58, which are secured to the faces oit the rectangularsurface oft the said cutter head 56. The said planing knives 58 arepreferably slotted and adjustably secured upon the cutter head hy meansof holte G0, so 'that the projection of their cutting edges may hecontrolled. lt will be uncle'rstoml in surfacing a block that the saidblock generally becomes unerenl)Y worn havingA hollow surfaces arefrequent-ly of considerable depth. ln resurfacing a bloeit it istherefore necessary to metio a out of considerable depth at times and"ivl'iile the smv 57 vwill eut to the desired s face in resurfacing theblock. the cutters 53 Awill greatly assist. by cut-t.' auaythe. materiallett chore the saw. ie shalt is carried hy a screw threaded sleeve Glwhich has a hearing Within the cutter casing 5l and is adapted to beengaged by an. adjusting wheel which s internally thi-cade( to engagethe threads upon the exterior ot seid sleeve Gl. Ey 'turning' the saidwheel 9: 'the Shaft 55 may lic lowered or raised. with lrespect to thecutter 'freine 5l and for adjust-ing the cutter head with respect. toits Work. The shaft 55 is clamped within the sleeve '6l by ineens oit anut (S3 and the upper end of saicl shaft i't''is reduced and has aspiined engagement. with the elongated. hub 6ft of e loereled gear 65which :is journal'ed in the upper end of the cutter cnsing 5l. The shaft55 muy with respect to said gear and yet will always -be turnedtl'iereby the said `ucar 65 meshes with a beveled pinion 66 which iscarried by a bracket (i7 mounted upon the upper end of the cuttereasing; 5l.. The said geur 65 also has e. splined engagement with the,shaft 27 so that the said gear will always be turned by cutter Ytraine5l which has bearings at 52 and tween the parts as illustrated in.lfigz` Q@ The said frame 51 is provided with a bloc-.19,5%-

:icluated direction in which the screw shaft is turned.`

cured thereto a cutter head 56. which is oroformed therein which 'ltl'ius loe vertically adjusted" .vertical position 'tion With the ahovedescription.

no/.10,41 e

Said shaft, 27 and yet ulay slip longitudinally thereof in aecordalnewith thi` ndjlnztnunt ol' the'euttel' 't'lanle 5l. l'ln` outter l' aule:'ll is also prefel'allly l'ilovided with a horizontal shield plate 68which projects; over the upper surface ot the euttol: head :'it toprevent the said Cutter head from lining engaged hy anything but thehloeknpon whit-ll it is to opel-ate.

The operation of the nlerhauinnl it; l. helieved will be readilyunderstood in connut:A The pivot, pin- 13 is set and adjuntod upon theSurfin-e of the block or other taille which in to he pinned and themotor Q23 is soi in operation, the cutter having been set, et oneextremity of its path of movement- The operation ol.' the motor willcause the .shalt Il to netuate the gears G6 and ti for rotzitinf themittel' head and thus cutting the surtaxe of thtA block which is to hepinned. rlhe 'uttel` head is of course first lowelel'l until the depth0f out; desired is provided for. 'the nlove'n'lent imparted through thtltrain ol gearing at the outer end ot the traine t() will at the sametime rotate the sel-eu' halt tti so as to gradually Cause the Said ariul() to he swung about the pivot pin lf3, and thin` lnove the cutter in aspiral nlnnnezI over the sul'V4 face that.- is beiner planed. y'lllespeed with 4which this feeding mm'enlent if.' lleeolun plis-hed may helinrreused or dilnininhed as desired by the adjustment. ot the alln :nland the friction gear 3Q earried thereby au here tofore described. OtLonrse it` is preferable to have the swingingi movement'. of the'fl-aine l0 comparatively slow Whereas the cutter itself may be rotatedat a much more rapid rate of speed.

It will be apparent that. the device may he readily .er-.ated andadjusted upon any kind of a sllrlacewhieh it is (lenired to level oreven. It is-howevel' particularly adapted t0 the resurfacing: olhutl'hel's nleat htoelts which become so inleven ill use vl'lonl time totime.

VVhnt I elainl is:

l. A Surfin-.ing luaehine, eolnprisinnr a` pivoty pin -a lupted to hemounted upon the material to he Ialu-fataal, an adjuutuhle hl':leinglnx-,amy ral'l'ied 'ny said piu :ind havingr a bearing upon the saidnnltel'ial to he slufaced, outside and uround the pivot pin, the saidpivot pill and bracing lneaus t'ol-lu inf.,lr the. Sole support. l'olthenull-hine, a frame pivoted upon said supporting;l pin and adapted toswing around the Haine, a rotatable cutter carried hy -duid l'runlo7 anda n'lotor also lnounted on said lranu and adapted to aotuate :mideuttel.

2'. A nurturing nnlviline, folnprixiug a pivot pin adapted lo he setupon :l `urlano t-o be plant-d, adiustahle collars' .alu-rounding theImid pivot pin, one ol' Huid t-o'llui's lining rigidly mounted upon thesaid sluit-.loe while the other is :ldjutahly eal'l'ied hy thtl saidpivot pill. the ('ollala` eoiipel'aling to hold the pivot pill inpinpll'l :ldju.-;ted vertical position. :l llz'lnn` jouluuled upon :raidpill und renting upon ne ot .fzlld eolhu'u, :l lno tol' mounted upontluI said ll-llnle. llleanaI operated h v the huid nlotol l'ol` turningYthe l'rante upon the pin, :llld :l euttei' lnol'ahly mounted on l'nidl'l'anle :lud adapted to he operated h v the lid luotol.

3. Surfin-ing nl:nlline-` eolnplisillgva supporting' post adapted to heheld in vel'- tieal position upon :l sull'aee to he phuled. anadjnstahle nlelnhel' hurried hy the said post and adapted to llllll upon.the said urlare t'or hlai'ing tht.l post in yel'tical position.` afranu journaled upon .Caid post` retiring earried lly .the l'rullle undnonnen-ted with the pont around the salue, a rotating' euttel' nloulltedupon Huid l'lnule. gearing t'oi operating.r the ylid 'uttel. and nlotivelllezlnst'lll'ried hy the l'l'uule l'or driving tllo f-lltter'aild nlo\-infr the t'l'zlnll ahout. the supporting poht.

tened in :l rtw-ens: t'ol'lued in'a nient hlook,

Al t-olhuatu'loulldinlLr said post. adjusting fserewi: r'urriedthel'elllY for attitudine* the raid pont to reltii'al position, a l'lanujourlluled upon the huid pont.. :l `geul' lixed to the L-.:lid po; tfearing upon the said f'ranie luedlingl' with tlu` geur of the post undlneanh' lolactuatingr the said gearing l'ol' turning tlu` ll'anle :lhoutthe said posti.` the nail-l pont eonhtitutingf the nolo support of l:lid l'nnle and a leveling devine therefor.

A sul'faeillgr ulaelline eolnpl'ioiner a post, adapted to he scouredupon the surface to he pinned` :l `traine journaled upon said post. andextending' radially therefrom, il .dlill't jourllaled upon the saidframe, gull'- ingr connet'ting the said shalt. with the post., anactuating Shaft also journnled upon said trarne. a n'lotol (':ll'ried hythe 'frame and operutin'hr the said actuatingr shaft., intermediategearing interposed between the two Sllaftn, a lneollallisni lorcontrolling the Speed eoluluunieated 'from ono to the other, theinstituting ol the gearing alld shafts by the nlotol' operatingr toswing the frame uhout'` the post.

tl. A ul'laoing machine for nleat hloehs, -oluprinin,f, a ventral post',a lllmle jonrnuh-d on said post, a rotatuhle cutter lllovahly nlountedon said traine, a, shalt l'or actuating! the cutter, gearing operated bySaid nhal'tI l'ol nloving tho l'anlv about the naid pont` and lneansalso :utlnlted hy said gearingl l'ol` movingr the rotating eutlel' overthe Luil'lm'e olI tlle meat. lilotlt'.

'l'. Sul-loving uuuhine 'olnprisillnj :l eentl-l-l-poxt. n frulneiolu'lnlled tllel'eou and adapted to Swine' ahout. the Nunn. :l 'l'raluoturninlnr shaft; joull'nlled upon the 'tranne and capable of effectingthe movement o' the "frame on said post, a motive shai't mounted, upon[he said frame, means for rotating the saine, *friction gearing carriedby said.

motive shaft, an adjustable friction gear co ope ating with saidfriction gearing, and reducinggears interposed between the same and theframe turning shaft, the movement of the said motive shaft communicatinga slower movement to the frame turning shaft.

S. A surfacing machine comprising a pivoted frame adapted to move abouta vert-ical axis, a sliding cutter mechanism mounted upon said framehaving a cutter shaft, a cutter head carried Jthereby having a horilzontal cutting 1nechanism, and planing cutters arranged adjacentthereto, gearing for rotating the saidvcutter, and means upon thepivoted frame for turning it on the said axis and for actuating the saidcutter mech.- anism.

9. A surfacing machine comprising standard, a frame journaled thereon soas to swing about the same, a cutter head iongitudinally movable uponsaid frame., a cutter shaft carrying said cutter head, means 'forvertically adjusting said shaft and cut- J(er head with respect to theframe and the surface to be operated upon, gearing for actuating saidshaft, a power shaft having a splined engagement with head gearing, saidshaft operating to swing the frame., move rho cutter lcngitiulinally ofthe frame and rotate said cutter, and a motor for driving the same.

1G. A surfacing machine comprising a vertical post, a f'aine pirotedthereon, a gear secured to said post, a, pinion engaging said gear, ascrew threaded shaftifor drivingr said pinion, a cutter mechanisminorably' mounted on said framing and adapted to engage the threads ofsaidlshaft, gearing for rotating the Cutter mechanism,

:romero a shaft for actuating said gearing, a riction gear carried bythe latter shaft, a friction gear cooperating therewith, pivoted meanscarrying said latter gear, means for clamping it in different adjustedpositions for cl anging the speed communicated' be tween .said gears andother gears for com municating movement from the friction gearing to thesaid screwsT threaded shaft.

M 11. A surfacing machine comprising a piroted frame, a pivot supporttherefor adapted to be mounted upon the surface to be leveled andconstituting the scie Sup port or" said frame, the :trame projecting forthe moet part to one side of the pivot point, a short portion thereofonly projecting upon the other side of said pivot, a balancing motormounted upon the short end of the frame, and a cutting meciiamism4carried by the long end of the frame, the motor5 being adapted to turnthe frame and also operating the said cutting mechanism.

12. A surfacing machine., comprising a supporting standard adapted to beadjusted upon the surface to be operated upon7 a frame pirotally mountedthereon and car- Tying a cutting mechanism, mechanism on the frame forrotating the cutting mechanism and moving it back and forth upon thesaid frame, and a motor mounted upon the frame upon the opposite side ofthe pivot support from the cutting mechanism, `for balancing the frame,and means opera ated by said motor to turn the -frame upon its pivot,feed the cutting mechanism back and forth upon the frame and rotate thesaid cutting mechanism. r

In witness that claim the foregoing have hereunto subscribed my namethis 9th day of June, 1911.

' JOHN E. RGHTMIRE.

Witnesses E. STADTMAN, EARLE R. POLLARD.

